A Speed Regulation Control Module Applied to Exercise Bike Power Generation Systems

Abstract

This thesis proposes a new speed regulation control module applied to exercise bike power generation systems which can maintain a required frequency by controlling the generator’s constant rotor speed In conventional approaches electricity output generated from a variable speed generator will require an additional power converter to fulfill the grid connection requirements In this thesis a new converter-less approach employed between exercise bike and power generator systems is proposed Moreover the transmission system incorporated with a planetary gearbox and an electric motor is adopted Based on its appealing feature of 2-inputs/ 1-output port the power assist strategy can be realized with an electronically controlled motor According to speed information measured from manual pedaling and also considering that in reality power systems are always affected by load variations a full closed-loop position feedback control is designed for ensuring the output speed will remain constant even affected by the electromagnetic torque Furthermore four kinds of power assist strategy are employed in the control loop to react to different riding situations so that the system could be operated safely The feasibility and effectiveness of the proposed method is verified by the experimental results

Date of Award	2019
Original language	English
Supervisor	Mi-Ching Tsai (Supervisor)